Grade 3 · Science · Challenge
Free Science Review worksheet - version 14
Grade 3 science review matched to the learner's current level. This printable version includes 10 grade-appropriate questions and a separate answer sheet.
Science Review
Grade 3 · Stretch challenge · 10 questions · Version PG-K5EX1Z-1LFG
1.State Newton's third-law force pair when swimming.
2.Why are food webs more realistic than single food chains?
3.Which blood cells fight infection?
4.What is density?
5.What does conservation of energy mean?
6.Why do seasons occur?
7.What is the pH of a neutral solution?
8.What is the role of chlorophyll?
9.What transfers traits from parents to offspring?
10.What is the difference between weather and climate?
Answers and teaching notes
Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.
Show answers for version 14
- State Newton's third-law force pair when swimming.Push water back; water pushes swimmer forward
- Why are food webs more realistic than single food chains?Organisms have multiple food sources and predators
- Which blood cells fight infection?White blood cells
- What is density?Mass per unit volume
- What does conservation of energy mean?Energy changes form but is not created or destroyed
- Why do seasons occur?Earth's tilt as it orbits the Sun
- What is the pH of a neutral solution?7
- What is the role of chlorophyll?Absorb light for photosynthesis
- What transfers traits from parents to offspring?Genes
- What is the difference between weather and climate?Weather is short-term; climate is long-term patterns
Worked example
Connect the question to an observable process or scientific model.
Common mistake
Selecting a familiar term without checking its meaning.
Helpful hint
Explain why your answer makes sense.